mosaicml

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mpt-7b-instruct

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Mosaic ML, Inc. 353

Error I receive:

File ~/.cache/huggingface/modules/transformers_modules/mosaicml/mpt-7b-instruct/85c1f1c201273bbfee661d4a2f8307c95f8956c9/attention.py:58, in scaled_multihead_dot_product_attention(query, key, value, n_heads, past_key_value, softmax_scale, attn_bias, key_padding_mask, is_causal, dropout_p, training, needs_weights, multiquery)
     56 if dropout_p:
     57     attn_weight = torch.nn.functional.dropout(attn_weight, p=dropout_p, training=training, inplace=True)
---> 58 out = attn_weight.matmul(v)
     59 out = rearrange(out, 'b h s d -> b s (h d)')
     60 if needs_weights:

RuntimeError: expected scalar type BFloat16 but found Float

Code for initialization:

import torch
import transformers
from transformers import AutoTokenizer
tokenizer = AutoTokenizer.from_pretrained('EleutherAI/gpt-neox-20b')

name = 'mosaicml/mpt-7b-instruct'

config = transformers.AutoConfig.from_pretrained(name, trust_remote_code=True)
config.attn_config['attn_impl'] = 'torch'
config.init_device = 'cuda:0' # For fast initialization directly on GPU!



model = transformers.AutoModelForCausalLM.from_pretrained(
  name,
  config=config,
  #load_in_8bit=True,
  torch_dtype=torch.bfloat16, # Load model weights in bfloat16
  trust_remote_code=True,
  device_map="auto"
)

input_ids = tokenizer(fmt_ex, return_tensors="pt").input_ids
input_ids = input_ids.to(model.device)

generate_params = {
    "max_new_tokens": 1024, 
    "temperature": 0.1, 
    "top_p": 1.0, 
    "top_k": 0, 
    "use_cache": True, 
    "do_sample": True, 
    "eos_token_id": 0, 
    "pad_token_id": 0
}
generated_ids = model.generate(input_ids, **generate_params)
output = tokenizer.decode(generated_ids.cpu().tolist()[0], skip_special_tokens=True)

for line in output.split('\n'):
    print(line)